Cable sheath current on-line monitoring device

Abstract

The utility model is suitable for the technical field of monitoring devices, and provides a cable sheath current on-line monitoring device which comprises a monitoring device. The monitoring device is internally provided with a system control unit and a current monitoring device connected with the surface of the cable interbed, and the side wall of the monitoring device is provided with a ventilation plate. According to the cable sheath current on-line monitoring device provided by the utility model, through the cooperation of the flame sensor, the gear, the sealing rack, the fire extinguishing cabin and the nozzle, the interior of the monitoring device is sealed while a fire extinguishing agent is sprayed when a fire source is generated, so that the retention of the fire source is reduced, the realization of rapid flame retardant treatment is ensured, and the practicability is improved; meanwhile, through cooperation of a ventilation plate, an insertion rod, a clamping rod and a limiting spring, rapid disassembly and assembly of the ventilation plate are achieved, it is ensured that the ventilation plate conducts subsequent stable ventilation operation, and heat accumulation in the monitoring device is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of monitoring devices, and particularly relates to an on-line monitoring device for cable sheath current. Background Technique

[0002] With the rapid development of power grid construction, the use of power cables is becoming more and more extensive. Partial discharge is the main reason for the damage of the insulation of power cables. Monitoring the partial discharge situation on power cables and effectively analyzing it can timely and accurately judge the insulation state of power cables and effectively locate the fault point when a fault occurs.

[0003] Current monitoring devices in the prior art are generally installed on the top of cable poles, and the current on the cable surface is monitored in real time by wiring. However, due to the large number of internal cable components in the monitoring device, when used for a long time, it is easy to cause the temperature in the box to rise or even cause a fire, resulting in the situation that it is difficult to ensure the stable operation of the equipment and timely process it, and the internal components and equipment are damaged, affecting the use. Content of the Utility Model

[0004] The utility model provides an on-line monitoring device for cable sheath current, aiming to solve the problem that there are many cables in the current monitoring device, which is easy to cause high temperature and fire.

[0005] The utility model is realized as follows: an on-line monitoring device for cable sheath current includes a monitoring device; a system control unit and a current monitoring device connected to the surface of the cable sheath are installed inside the monitoring device. A ventilation plate is arranged on the side wall of the monitoring device, a flame sensor is arranged inside the monitoring device, a storage compartment is opened on the side wall of the monitoring device, a gear is arranged inside the storage compartment, a sealing rack is meshed and driven on one side of the gear, a fire extinguishing compartment is arranged inside the sealing rack, and a nozzle is connected to one side of the fire extinguishing compartment.

[0006] Preferably, a plurality of groups of nozzles are provided, and the plurality of groups of nozzles are arranged at equal intervals on one side of the fire extinguishing compartment.

[0007] Preferably, one end of the storage compartment is set to be an arc shape matching the gear.

[0008] Preferably, a fixing block is fixedly installed on one side of the ventilation plate, a fixing rod is fixed on one side of the fixing block, an insertion rod is fixedly installed at the end of the fixing rod away from the fixing block, a sleeve rod is sleeved on the surface of the end of the insertion rod away from the fixing rod, a clamping rod inserted into the monitoring device is fixedly installed at the end of the sleeve rod away from the insertion rod, and a limiting spring is sleeved on the surface of the insertion rod.

[0009] Preferably, there are two groups of the clamping rods, and the two groups of clamping rods are symmetrically arranged on both sides of the ventilation plate.

[0010] Preferably, a bayonet matching the clamping rod is opened inside the monitoring device.

[0011] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0012] Through the cooperation of the flame sensor, the gear, the sealing rack, the fire extinguishing chamber and the nozzle, the inside of the monitoring device can be sealed when a fire source is generated, and at the same time, the spraying operation of the fire extinguishing agent can be realized, reducing the retention of the fire source, ensuring the realization of rapid flame retardant treatment, increasing its practicability. At the same time, through the cooperation of the ventilation plate, the insertion rod, the clamping rod and the limit spring, the rapid disassembly and assembly of the ventilation plate can be realized, ensuring the subsequent stable ventilation operation of the ventilation plate and reducing the heat accumulation inside the monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front sectional structure schematic diagram of the utility model;

[0014] Figure 2 is the side sectional structure schematic diagram of the utility model;

[0015] Figure 3 is the top sectional structure schematic diagram of the fire extinguishing chamber of the utility model;

[0016] Figure 4 is the Figure 2 amplified schematic diagram of the structure at A in the utility model;

[0017] In the figure: 1, monitoring device; 2, ventilation plate; 3, flame sensor; 4, storage chamber; 5, gear; 6, sealing rack; 7, fire extinguishing chamber; 8, nozzle; 9, fixing block; 10, fixing rod; 11, insertion rod; 12, sleeve rod; 13, clamping rod; 14, limit spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects, not to describe a specific order.

[0019] References to "embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0020] An embodiment of the present utility model provides an on-line monitoring device for cable sheath current, as Figures 1-4 shown, which includes a monitoring device 1. Inside the monitoring device 1, a system control unit and a current monitoring device connected to the surface of the cable sheath are installed. A ventilation plate 2 is provided on the side wall of the monitoring device 1. A flame sensor 3 is provided inside the monitoring device 1. A storage compartment 4 is opened on the side wall of the monitoring device 1. A gear 5 is provided inside the storage compartment 4. A sealing rack 6 is meshed and driven on one side of the gear 5. A fire extinguishing compartment 7 is provided inside the sealing rack 6. A nozzle 8 is connected to one side of the fire extinguishing compartment 7. When the device is in use, through the setting of the ventilation plate 2, when the equipment components inside the monitoring device 1 are working, stable ventilation treatment can be realized, reducing the occurrence of heat accumulation, improving the working efficiency of the equipment components. At the same time, when a fire source is generated by the equipment components, at this time, the flame sensor 3 works and transmits a signal to the control unit. Subsequently, the driving part of the gear 5 is controlled by the control unit to work, so that the gear 5 drives the sealing rack 6 to slide. Subsequently, the ventilation plate 2 can be covered by the two sealing racks 6 to realize the sealing treatment of the inside of the monitoring device 1, ensuring the isolation of air. At the same time, the control unit drives the discharge valve of the fire extinguishing compartment 7, so that the fire extinguishing agent in the fire extinguishing compartment 7 is sprayed onto the surface of the equipment components in the monitoring device 1 through the nozzle 8, realizing the fire extinguishing operation, increasing the rapid fire extinguishing treatment of the device, improving the use effect of the device, and ensuring the flame retardant stability.

[0021] A plurality of nozzles 8 are provided. The plurality of nozzles 8 are arranged at equal intervals on one side of the fire extinguishing compartment 7. Through the equal interval setting of the plurality of nozzles 8, the fire extinguishing agent in the fire extinguishing compartment 7 can be sprayed into the monitoring device 1 subsequently, realizing the rapid fire extinguishing effect, greatly increasing the practicability of the device.

[0022] One end of the storage compartment 4 is set to be arc-shaped to match the gear 5. Through the arc-shaped setting, the stable rotation of the gear 5 can be ensured.

[0023] On one side of the ventilation plate 2, a fixing block 9 is fixedly installed. On one side of the fixing block 9, a fixing rod 10 is fixed. At the end of the fixing rod 10 far from the fixing block 9, a plug rod 11 is fixedly installed. A sleeve rod 12 is sleeved on the surface of the end of the plug rod 11 far from the fixing rod 10. At the end of the sleeve rod 12 far from the plug rod 11, a clamping rod 13 inserted into the monitoring device 1 is fixedly installed. A limiting spring 14 is sleeved on the surface of the plug rod 11. When the ventilation plate 2 is used for a long time, by pulling the sleeve rod 12 at this time, the plug rod 11 will slide relatively in the sleeve rod 12, so that the clamping rod 13 slides relatively in the monitoring device 1 while stretching the limiting spring 14. At this time, the fixing rod 10 can be driven to pull the ventilation plate 2 outwards, and then the clamping rod 13 is separated from the monitoring device 1, completing the disassembly work of the ventilation plate 2. At this time, the ventilation plate 2 can be cleaned or replaced to ensure that the ventilation plate 2 after replacement is more stable and convenient during subsequent ventilation treatment, increasing the ventilation effect in the monitoring device 1 and reducing the situation of heat accumulation.

[0024] There are two groups of clamping rods 13, and the two groups of clamping rods 13 are symmetrically arranged on both sides of the ventilation plate 2. Through the arrangement of the two groups of clamping rods 13, the fixing property of the ventilation plate 2 is greatly improved, making its subsequent disassembly and assembly more convenient.

[0025] A bayonet matching the clamping rod 13 is opened inside the monitoring device 1. Through the opening of the bayonet, it is ensured that the clamping rod 13 is stably clamped, greatly improving the fixing property of the ventilation plate 2.

[0026] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be adopted in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0027] In the several embodiments provided by the present application, it should be understood that the disclosed device can be realized in other ways. For example, the device embodiments described above are only illustrative. For example, the above-mentioned unit division can have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0028] The units described above as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present invention according to the situation or make other adjustments, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. On-line monitoring device for cable sheath current, characterized in that, Including a monitoring device (1): A system control unit and a current monitoring device connected to the surface of the cable sheath are installed inside the monitoring device (1). A ventilation plate (2) is provided on the side wall of the monitoring device (1). A flame sensor (3) is provided inside the monitoring device (1). A storage compartment (4) is opened on the side wall of the monitoring device (1). A gear (5) is provided inside the storage compartment (4). A sealing rack (6) is meshed and driven on one side of the gear (5). A fire extinguishing compartment (7) is provided inside the sealing rack (6). A spray head (8) is connected to one side of the fire extinguishing compartment (7).

2. The on-line monitoring device for cable sheath current according to claim 1, characterized in that, A plurality of the spray heads (8) are provided, and the plurality of spray heads (8) are equidistantly distributed on one side of the fire extinguishing compartment (7).

3. The on-line monitoring device for cable sheath current according to claim 1, characterized in that, One end of the storage compartment (4) is set to be arc-shaped and matched with the gear (5).

4. The on-line monitoring device for cable sheath current according to claim 1, wherein, A fixing block (9) is fixedly installed on one side of the ventilation plate (2). A fixing rod (10) is fixed to one side of the fixing block (9). A plug rod (11) is fixedly installed at the end of the fixing rod (10) away from the fixing block (9). A sleeve rod (12) is sleeved on the surface of the plug rod (11) away from the fixing rod (10). A clamping rod (13) inserted into the monitoring device (1) is fixedly installed at the end of the sleeve rod (12) away from the plug rod (11). A limiting spring (14) is sleeved on the surface of the plug rod (11).

5. The on-line monitoring device for cable sheath current according to claim 4, characterized in that, Two groups of the clamping rods (13) are provided, and the two groups of clamping rods (13) are symmetrically arranged on both sides of the ventilation plate (2).

6. The on-line monitoring device for cable sheath current according to claim 1, characterized in that A bayonet matching the clamping rod (13) is opened inside the monitoring device (1).

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